diff --git a/src/emergency_button.c b/src/emergency_button.c
new file mode 100644
index 0000000..8004bb4
--- /dev/null
+++ b/src/emergency_button.c
@@ -0,0 +1,67 @@
+#include <avr/io.h>
+#include <avr/interrupt.h>
+
+// INT0 has priority over INT1, which has priority over INT2, which I
+// presume has priority over INT3, no matter the order you code it or wire it
+// Need to ask anout pullup resistors for all switches
+// Need to test 12V running through the circuit--find proper resistors.
+int main(void){
+    //allows interruptions
+    sei();
+
+    // Sets 3 pins for output
+    // leds for now; will change when Byron figures out sensing system
+    // estop1 - Pin 10
+    DDRE |= _BV(PE1);
+    // estop2 - Pin 28
+    DDRB |= _BV(PB7);
+    // estop3 - Pin 22
+    DDRC |= _BV(PC6);
+
+    // Generates interrupt when INT0, INT1, and INT2 are at 0V
+    // Emergency buttons are normally closed; when they are pressed,
+    // there will be no more voltage through the circuit
+    EICRA &= ~(_BV(ISC00) | _BV(ISC01)); // INT0 - Pin 14
+    EICRA &= ~(_BV(ISC10) | _BV(ISC11)); // INT1 - Pin 16
+    EICRA &= ~(_BV(ISC20) | _BV(ISC21)); // INT2 - Pin 26
+
+    // Sets INT0, INT1, and INT2 to input
+    // These pins can generate interruptions
+    // Each pin corresponds to an emergency stop
+    // estop 1 - Pin 14
+    EIMSK |= _BV(INT0);
+    // estop 2 - Pin 16
+    EIMSK |= _BV(INT1);
+    // estop3 - Pin 26
+    EIMSK |= _BV(INT2);
+
+    //Run forever.
+    while(1);
+}
+
+// Method to handle an interrupt from estop1
+ISR(INT0_vect){
+    // Send 5V to output pin PE1, drives an led
+    PORTE |= _BV(PE1);
+    // Turns off LED when it is done
+    // The LED will stay on while this interrupt is being generated, for some reason
+    PORTE &= ~(_BV(PE1));
+}
+
+// Method to handle an interrupt from estop2
+ISR(INT1_vect){
+    // Send 5V to output pin PE2, drives an led
+    PORTB |= _BV(PB7);
+    // Turns off LED when it is done
+    // The LED will stay on while this interrupt is being generated, for some reason
+    PORTB &= ~(_BV(PB7));
+}
+
+// Method to handle an interrupt from estop3
+ISR(INT2_vect){
+    // Send 5V to output pin PD4, drives an led
+    PORTC |= _BV(PC6);
+    // Turns off LED when it is done
+    // The LED will stay on while this interrupt is being generated, for some reason
+    PORTC &= ~(_BV(PC6));
+}
diff --git a/src/ready2drive.c b/src/ready2drive.c
new file mode 100644
index 0000000..7bf5127
--- /dev/null
+++ b/src/ready2drive.c
@@ -0,0 +1,32 @@
+#include <avr/io.h>
+#include <avr/interrupt.h>
+#include <util/delay.h>
+#include <sys/time.h>
+
+clock_t start;
+//leave pins 6&7 for can
+//button bouncing?
+int main(void){
+    //allows interruptions
+    start = clock();
+    sei();
+
+    //Sets PE2 for output-pin11
+    DDRE |= _BV(PE2);
+
+    EICRA |= (_BV(ISC01)); // INT0 - Pin 14
+    EICRA &= (~_BV(ISC00));
+    EIMSK |= _BV(INT0);
+
+    //don't do anything else, ever
+    while(1);
+}
+
+ISR(INT0_vect){
+    if((clock()-start)/CLOCKS_PER_SEC>.25){
+        PORTE |= _BV(PE2);
+        _delay_ms(2500);
+        PORTE &= ~(_BV(PE2));
+    }
+    start = clock();
+}